#include <stdio.h>

#define LOG(...) printf(__VA_ARGS__)

static const char *s[] = {
    [0] = "ABC",
    [2] = "DEF",
};

static const char *s1[] = {
    [0] = "ABC" "123" "789",
    [1] = "DEF" "456",
};

int main()
{
    printf("%s,%s\n", s[0], s[2]);
    printf("%s,%s\n", s1[0], s1[1]);
    LOG("ok \n");
    return 0;
}